Capon, Robert J.; Barrow, Russell A.; Rochfort, Simone; Jobling, Michael; Skene, Colin; Lacey, Ernest; Gill, Jennifer H.; Friedel, Thomas; Wadsworth, David Tetrahedron, 1998, vol. 54, # 10 p. 2227 - 2242 doi: 10.1016/S0040-4020(97)10432-X